./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:01:35,054 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:01:35,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:01:35,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:01:35,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:01:35,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:01:35,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:01:35,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:01:35,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:01:35,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:01:35,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:01:35,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:01:35,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:01:35,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:01:35,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:01:35,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:01:35,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:01:35,199 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:01:35,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:01:35,199 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:01:35,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:01:35,200 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:01:35,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:01:35,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:01:35,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:01:35,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:35,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:01:35,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:01:35,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:01:35,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:01:35,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:35,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:01:35,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:01:35,202 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:01:35,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:01:35,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:01:35,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:01:35,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:01:35,202 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:01:35,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:01:35,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:01:35,203 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2024-11-24 00:01:35,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:01:35,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:01:35,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:01:35,563 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:01:35,564 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:01:35,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-11-24 00:01:38,595 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/bf1b78fcd/2a95faa356984677b0e988bfa25b1ed6/FLAG118a891a5 [2024-11-24 00:01:38,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:01:38,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-11-24 00:01:38,950 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/bf1b78fcd/2a95faa356984677b0e988bfa25b1ed6/FLAG118a891a5 [2024-11-24 00:01:38,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/bf1b78fcd/2a95faa356984677b0e988bfa25b1ed6 [2024-11-24 00:01:38,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:01:38,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:01:38,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:01:38,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:01:39,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:01:39,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:38" (1/1) ... [2024-11-24 00:01:39,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa5dcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39, skipping insertion in model container [2024-11-24 00:01:39,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:38" (1/1) ... [2024-11-24 00:01:39,028 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:01:39,194 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-11-24 00:01:39,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:01:39,254 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:01:39,268 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-11-24 00:01:39,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:01:39,306 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:01:39,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39 WrapperNode [2024-11-24 00:01:39,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:01:39,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:01:39,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:01:39,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:01:39,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,343 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 67 [2024-11-24 00:01:39,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:01:39,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:01:39,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:01:39,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:01:39,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,365 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:01:39,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,369 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:01:39,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:01:39,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:01:39,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:01:39,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (1/1) ... [2024-11-24 00:01:39,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:39,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:39,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:01:39,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:01:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:01:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:01:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:01:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:01:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:01:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:01:39,513 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:01:39,515 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:01:39,712 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-24 00:01:39,715 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:01:39,726 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:01:39,726 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:01:39,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:39 BoogieIcfgContainer [2024-11-24 00:01:39,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:01:39,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:01:39,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:01:39,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:01:39,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:01:38" (1/3) ... [2024-11-24 00:01:39,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a614658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:39, skipping insertion in model container [2024-11-24 00:01:39,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:39" (2/3) ... [2024-11-24 00:01:39,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a614658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:39, skipping insertion in model container [2024-11-24 00:01:39,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:39" (3/3) ... [2024-11-24 00:01:39,742 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2024-11-24 00:01:39,762 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:01:39,764 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-12.i that has 2 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:01:39,834 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:01:39,851 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49b8d6bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:01:39,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:01:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:01:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 00:01:39,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:39,868 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:39,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:01:39,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1159997385, now seen corresponding path program 1 times [2024-11-24 00:01:39,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:39,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135594993] [2024-11-24 00:01:39,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:39,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-24 00:01:40,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:40,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135594993] [2024-11-24 00:01:40,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135594993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:01:40,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959899560] [2024-11-24 00:01:40,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:40,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:40,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:40,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:40,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:01:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:40,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:01:40,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-24 00:01:40,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:40,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959899560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:40,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:01:40,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:01:40,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880334987] [2024-11-24 00:01:40,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:40,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:01:40,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:40,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:01:40,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:01:40,311 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:01:40,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:40,330 INFO L93 Difference]: Finished difference Result 53 states and 78 transitions. [2024-11-24 00:01:40,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:01:40,332 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-24 00:01:40,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:40,338 INFO L225 Difference]: With dead ends: 53 [2024-11-24 00:01:40,339 INFO L226 Difference]: Without dead ends: 26 [2024-11-24 00:01:40,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:01:40,345 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:40,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:01:40,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-24 00:01:40,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-24 00:01:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:01:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-24 00:01:40,385 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 44 [2024-11-24 00:01:40,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:40,385 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-24 00:01:40,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:01:40,386 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-24 00:01:40,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 00:01:40,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:40,389 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:40,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:01:40,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:01:40,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:01:40,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:40,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1413855497, now seen corresponding path program 1 times [2024-11-24 00:01:40,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:40,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634190963] [2024-11-24 00:01:40,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:40,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:01:40,723 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:01:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:01:40,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:01:40,822 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:01:40,823 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:01:40,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:01:40,827 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:01:40,867 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:01:40,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:01:40 BoogieIcfgContainer [2024-11-24 00:01:40,871 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:01:40,871 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:01:40,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:01:40,872 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:01:40,872 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:39" (3/4) ... [2024-11-24 00:01:40,875 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:01:40,876 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:01:40,877 INFO L158 Benchmark]: Toolchain (without parser) took 1881.94ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 82.2MB in the end (delta: 12.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-11-24 00:01:40,877 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:01:40,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.76ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 82.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:01:40,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.39ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:01:40,878 INFO L158 Benchmark]: Boogie Preprocessor took 32.92ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:01:40,879 INFO L158 Benchmark]: RCFGBuilder took 349.66ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 67.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:01:40,879 INFO L158 Benchmark]: TraceAbstraction took 1140.62ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 83.0MB in the end (delta: -15.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:01:40,880 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 82.2MB in the end (delta: 598.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:01:40,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.76ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 82.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.39ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.92ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 349.66ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 67.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1140.62ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 83.0MB in the end (delta: -15.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 82.2MB in the end (delta: 598.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 4; [L23] signed char var_1_4 = -1; [L24] signed char var_1_5 = 100; [L25] signed long int var_1_6 = 1000; [L26] double var_1_7 = 4.5; [L27] unsigned char var_1_8 = 1; [L28] unsigned char var_1_9 = 0; [L29] signed long int var_1_10 = 256; [L30] signed char last_1_var_1_1 = 4; VAL [isInitial=0, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=-1, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L62] isInitial = 1 [L63] FCALL initially() [L65] CALL updateLastVariables() [L55] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=-1, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L65] RET updateLastVariables() [L66] CALL updateVariables() [L44] var_1_4 = __VERIFIER_nondet_char() [L45] CALL assume_abort_if_not(var_1_4 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L45] RET assume_abort_if_not(var_1_4 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L47] var_1_5 = __VERIFIER_nondet_char() [L48] CALL assume_abort_if_not(var_1_5 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L48] RET assume_abort_if_not(var_1_5 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L50] var_1_9 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L51] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L52] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L52] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L66] RET updateVariables() [L67] CALL step() [L34] var_1_7 = 199.5 [L35] var_1_8 = var_1_9 [L36] var_1_10 = var_1_5 [L37] signed long int stepLocal_0 = var_1_10; VAL [isInitial=1, last_1_var_1_1=4, stepLocal_0=4, var_1_10=4, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L38] COND TRUE stepLocal_0 >= last_1_var_1_1 [L39] var_1_1 = (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L41] var_1_6 = ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1))) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (((((var_1_10 >= last_1_var_1_1) ? (var_1_1 == ((signed char) (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) : 1) && (var_1_6 == ((signed long int) ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1)))))) && (var_1_7 == ((double) 199.5))) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((signed long int) var_1_5)) ; VAL [\result=0, isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 110/120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:01:40,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:01:43,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:01:43,911 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:01:43,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:01:43,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:01:43,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:01:43,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:01:43,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:01:43,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:01:43,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:01:43,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:01:43,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:01:43,966 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:01:43,967 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:01:43,967 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:01:43,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:01:43,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:01:43,967 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:01:43,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:01:43,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:01:43,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:01:43,968 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:01:43,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:01:43,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:01:43,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:01:43,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:43,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:01:43,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:01:43,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:01:43,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:01:43,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:43,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:01:43,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:01:43,971 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:01:43,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:01:43,972 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:01:43,972 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:01:43,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:01:43,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:01:43,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:01:43,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:01:43,972 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2024-11-24 00:01:44,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:01:44,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:01:44,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:01:44,393 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:01:44,393 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:01:44,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-11-24 00:01:47,704 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/d0de6ed0c/6c70bcfe9869439b8535c17f384690fe/FLAG6816020dc [2024-11-24 00:01:48,022 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:01:48,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-11-24 00:01:48,035 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/d0de6ed0c/6c70bcfe9869439b8535c17f384690fe/FLAG6816020dc [2024-11-24 00:01:48,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/data/d0de6ed0c/6c70bcfe9869439b8535c17f384690fe [2024-11-24 00:01:48,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:01:48,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:01:48,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:01:48,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:01:48,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:01:48,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18dd7dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48, skipping insertion in model container [2024-11-24 00:01:48,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:01:48,281 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-11-24 00:01:48,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:01:48,356 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:01:48,367 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-11-24 00:01:48,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:01:48,419 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:01:48,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48 WrapperNode [2024-11-24 00:01:48,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:01:48,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:01:48,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:01:48,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:01:48,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,480 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2024-11-24 00:01:48,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:01:48,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:01:48,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:01:48,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:01:48,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,511 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:01:48,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:01:48,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:01:48,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:01:48,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:01:48,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (1/1) ... [2024-11-24 00:01:48,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:48,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:48,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:01:48,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:01:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:01:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:01:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:01:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:01:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:01:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:01:48,685 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:01:48,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:01:48,868 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-24 00:01:48,868 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:01:48,876 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:01:48,877 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:01:48,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:48 BoogieIcfgContainer [2024-11-24 00:01:48,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:01:48,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:01:48,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:01:48,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:01:48,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:01:48" (1/3) ... [2024-11-24 00:01:48,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbd26d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:48, skipping insertion in model container [2024-11-24 00:01:48,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:48" (2/3) ... [2024-11-24 00:01:48,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbd26d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:48, skipping insertion in model container [2024-11-24 00:01:48,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:48" (3/3) ... [2024-11-24 00:01:48,888 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2024-11-24 00:01:48,905 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:01:48,906 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-12.i that has 2 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:01:48,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:01:48,987 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41dbc37a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:01:48,988 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:01:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:01:48,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 00:01:48,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:48,999 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:49,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:01:49,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:49,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1159997385, now seen corresponding path program 1 times [2024-11-24 00:01:49,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:01:49,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244030819] [2024-11-24 00:01:49,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:49,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:01:49,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:01:49,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:01:49,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:01:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:49,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:01:49,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:49,199 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-24 00:01:49,199 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:49,200 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:01:49,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244030819] [2024-11-24 00:01:49,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244030819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:49,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:49,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:01:49,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467831297] [2024-11-24 00:01:49,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:49,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:01:49,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:01:49,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:01:49,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:01:49,228 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:01:49,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:49,246 INFO L93 Difference]: Finished difference Result 53 states and 78 transitions. [2024-11-24 00:01:49,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:01:49,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-24 00:01:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:49,253 INFO L225 Difference]: With dead ends: 53 [2024-11-24 00:01:49,254 INFO L226 Difference]: Without dead ends: 26 [2024-11-24 00:01:49,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:01:49,263 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:49,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:01:49,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-24 00:01:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-24 00:01:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:01:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-24 00:01:49,309 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 44 [2024-11-24 00:01:49,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:49,311 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-24 00:01:49,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:01:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-24 00:01:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 00:01:49,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:49,315 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:49,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 00:01:49,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:01:49,516 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:01:49,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1413855497, now seen corresponding path program 1 times [2024-11-24 00:01:49,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:01:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208892130] [2024-11-24 00:01:49,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:49,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:01:49,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:01:49,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:01:49,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:01:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:49,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 00:01:49,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 00:01:57,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:57,992 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:01:57,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208892130] [2024-11-24 00:01:57,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208892130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:57,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:57,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:01:57,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14496344] [2024-11-24 00:01:57,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:57,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:01:57,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:01:57,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:01:57,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:01:57,996 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:01:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:58,487 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-11-24 00:01:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:01:58,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-11-24 00:01:58,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:58,490 INFO L225 Difference]: With dead ends: 44 [2024-11-24 00:01:58,490 INFO L226 Difference]: Without dead ends: 42 [2024-11-24 00:01:58,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:01:58,491 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 23 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:58,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 161 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-24 00:01:58,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2024-11-24 00:01:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 00:01:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2024-11-24 00:01:58,508 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 44 [2024-11-24 00:01:58,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:58,508 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2024-11-24 00:01:58,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:01:58,509 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-11-24 00:01:58,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 00:01:58,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:58,511 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:58,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:58,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:01:58,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:01:58,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1356597195, now seen corresponding path program 1 times [2024-11-24 00:01:58,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:01:58,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620046970] [2024-11-24 00:01:58,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:01:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:01:58,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:01:58,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:01:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:58,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:01:58,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 00:02:04,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:04,867 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:02:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620046970] [2024-11-24 00:02:04,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620046970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:04,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:04,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:02:04,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228215759] [2024-11-24 00:02:04,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:04,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:02:04,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:02:04,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:02:04,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:02:04,869 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:02:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:05,273 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2024-11-24 00:02:05,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:02:05,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-11-24 00:02:05,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:05,277 INFO L225 Difference]: With dead ends: 66 [2024-11-24 00:02:05,277 INFO L226 Difference]: Without dead ends: 64 [2024-11-24 00:02:05,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:02:05,278 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 14 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:05,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 194 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:02:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-24 00:02:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-11-24 00:02:05,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 00:02:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-11-24 00:02:05,293 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 44 [2024-11-24 00:02:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:05,293 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-11-24 00:02:05,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:02:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-11-24 00:02:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-24 00:02:05,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:05,296 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:05,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:05,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:02:05,497 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:05,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:05,498 INFO L85 PathProgramCache]: Analyzing trace with hash -272324834, now seen corresponding path program 1 times [2024-11-24 00:02:05,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:02:05,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87193205] [2024-11-24 00:02:05,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:05,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:02:05,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:02:05,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:02:05,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:02:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:05,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:02:05,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-24 00:02:08,649 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:08,649 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:02:08,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87193205] [2024-11-24 00:02:08,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87193205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:08,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:08,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:02:08,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334964768] [2024-11-24 00:02:08,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:08,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:02:08,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:02:08,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:02:08,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:02:08,653 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:02:08,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:08,914 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2024-11-24 00:02:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:02:08,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 85 [2024-11-24 00:02:08,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:08,916 INFO L225 Difference]: With dead ends: 65 [2024-11-24 00:02:08,916 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:02:08,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:02:08,917 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:08,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 137 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:02:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:02:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:02:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:02:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:02:08,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2024-11-24 00:02:08,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:08,919 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:02:08,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:02:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:02:08,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:02:08,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:02:08,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-24 00:02:09,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:02:09,134 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:02:09,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:02:09,438 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:02:09,450 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 00:02:09,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:02:09 BoogieIcfgContainer [2024-11-24 00:02:09,453 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:02:09,454 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:02:09,454 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:02:09,454 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:02:09,455 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:48" (3/4) ... [2024-11-24 00:02:09,457 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:02:09,463 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 00:02:09,467 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-24 00:02:09,467 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 00:02:09,468 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:02:09,468 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:02:09,563 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:02:09,564 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:02:09,564 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:02:09,565 INFO L158 Benchmark]: Toolchain (without parser) took 21502.04ms. Allocated memory was 83.9MB in the beginning and 629.1MB in the end (delta: 545.3MB). Free memory was 60.4MB in the beginning and 268.1MB in the end (delta: -207.7MB). Peak memory consumption was 332.7MB. Max. memory is 16.1GB. [2024-11-24 00:02:09,565 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:09,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.70ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 48.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:02:09,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.47ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:09,566 INFO L158 Benchmark]: Boogie Preprocessor took 60.33ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:09,566 INFO L158 Benchmark]: RCFGBuilder took 334.06ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 33.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:02:09,567 INFO L158 Benchmark]: TraceAbstraction took 20572.96ms. Allocated memory was 83.9MB in the beginning and 629.1MB in the end (delta: 545.3MB). Free memory was 32.8MB in the beginning and 276.3MB in the end (delta: -243.5MB). Peak memory consumption was 315.9MB. Max. memory is 16.1GB. [2024-11-24 00:02:09,567 INFO L158 Benchmark]: Witness Printer took 110.19ms. Allocated memory is still 629.1MB. Free memory was 276.3MB in the beginning and 268.1MB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:09,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.70ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 48.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.47ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.33ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 334.06ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 33.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 20572.96ms. Allocated memory was 83.9MB in the beginning and 629.1MB in the end (delta: 545.3MB). Free memory was 32.8MB in the beginning and 276.3MB in the end (delta: -243.5MB). Peak memory consumption was 315.9MB. Max. memory is 16.1GB. * Witness Printer took 110.19ms. Allocated memory is still 629.1MB. Free memory was 276.3MB in the beginning and 268.1MB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.2s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 524 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 137 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 773 SizeOfPredicates, 30 NumberOfNonLiveVariables, 393 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 460/460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((var_1_1 == 4) && (4 == last_1_var_1_1)) || ((var_1_5 == var_1_10) && (var_1_8 == var_1_9))) RESULT: Ultimate proved your program to be correct! [2024-11-24 00:02:09,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1791ad-f95f-42eb-836b-a1707ae0001c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE